On Wednesday, July 22, 2015 01:50:49 PM Shilpasri G Bhat wrote:
> Check if the cpu is online before changing the frequency/governor of
> the cpu.
> 
> Signed-off-by: Shilpasri G Bhat <[email protected]>
> ---
>  tools/power/cpupower/utils/cpufreq-set.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tools/power/cpupower/utils/cpufreq-set.c
> b/tools/power/cpupower/utils/cpufreq-set.c index f656e58..4e21357 100644
> --- a/tools/power/cpupower/utils/cpufreq-set.c
> +++ b/tools/power/cpupower/utils/cpufreq-set.c
> @@ -17,6 +17,7 @@
> 
>  #include "cpufreq.h"
>  #include "helpers/helpers.h"
> +#include "helpers/sysfs.h"
> 
>  #define NORM_FREQ_LEN 32
> 
> @@ -318,6 +319,9 @@ int cmd_freq_set(int argc, char **argv)
>                   cpufreq_cpu_exists(cpu))
>                       continue;
> 
> +             if (sysfs_is_cpu_online(cpu) != 1)
> +                     continue;
> +
>               printf(_("Setting cpu: %d\n"), cpu);
>               ret = do_one_cpu(cpu, &new_pol, freq, policychange);
>               if (ret) {

Thanks for catching this one and sending a patch!

Acked-by: Thomas Renninger <[email protected]>
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